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' itlNrran STATES PATENT NEWELL s. VALENTINE, or HARTFORD, coNNnoT1oU'r,' Ass1eNon TO THE HARTFORD SILVER PLATE ooMPANY, or SAME PLACE.

B URNISHING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 264,423, dated September 12, 1882.

Application filed July 1, 1882. (No model.)

To all whom it may concern: nected with the crank G by the connecting- Be itknown that I, NEWELL S. VALENTINE, rod H, which communicates motion to the bar 50 of Hartford, in the county of Hartford and E as the crank revolves. State of Connecticut, have invented certain J is the main shaft, which is driven by the 5 new and useful Improvements in Burnishingpulley K andbelt L in the customary manner. Machines;-and I do hereby declare that the fol- It turns in bearings forming part of the frame lowing is afull, clear, and exact description of the machine or set upon an independent 55 thereof, whereby a person skilled in the art support. The crank Gris attached to the shaft can make and use the same, reference being J, and is operated by it. Thiscrank is fur- IO had to the accompanying drawings, and to the nished with a sliding crank-pin, G, which can :1 letters of reference marked thereon. be set at any desired distance fromthe center Like letters in the figures indicate the same of the shaft, so as to give more or less throw 60 parts. p to the bar E. The bar E can thus be made to My improvement relates to machines for move sufficiently to give a full turn to the holding and rotating plated hollow ware or drum 0, or to rotate it through any portion of other metallic articles of a curved form durthe circumference. ing the process of burnishing, particularly M is a head upon the spindle B, to which is 65 such articles as are furnished with a handle or attached, by means of a screw or other conother obstruction which prevents them from venient device, aform or block upon which the being revolved continuously in one direction article R to be burnished is placed.

duringthe operation of burnishing. N is a sliding head, which can be moved The object of my invention is to provide a back and forth longitudinally upon the frame 70 machine which will bu'rnish, by a reciprocal:- A, and clamped in any position in a similar ing rotary motion, nearly the whole surface of manner to the sliding head of a lathe. It is such articles as those above mentioned, which furnished with a screw, 0, for pressing a block, are now burnished wholly by hand. 'P, firmly against the article'to be burnished In the accompanying drawings, illustrating to hold it firmly upon the'forming-block while 5 my invention, Figure l is a front view of my being burnished. The block]? turns with the improved burnishingmachine. Fig. 2 is an article burnished, and is not necessarily held 0 end view of the same. up by the screw 0. If the article burnished A is the fixed frame of the machine. has an open bottom, the block I? may be at- B is a spindle turning in bearings on the tached'to the head M. 80, frame A in a similar manner to the spindle of Q is a tool-rest for supporting the burnisha lathe. ing-tool. 5 G is a pulley or drum upon the spindle B. The operation of my improved machine is as D is a cord or strap passingone or more follows: A cup, R, having a handle, or any times around the drum 0, and having its ends other article, is placed upon the forming-block 85 attached to a reciprocating bar, E. attached to the head M, and the block P is E is abar slidingin fixed bearings E, which screwed up against it to hold it in place and 40 may be upon the frame A of the machine or prevent it from turning. The length of throw attached to a separate fixed support. The of the crank is adjusted to rotate the'drum U ends of the cord D are attached to the upper through the are required to reach around the 0 and lower ends of the bar E, and the cord is cup without including thehandle. The ma drawn tight, so that the movement up and chine is then set in operation by throwing on down of the bar turns the drum 0, around the belt of the shaft J. The movement of the which the cord is coiled, in a rotary direction bar E then rotates the cup back and. forth in back and forth. The reciprocating bar E is such a manner that the handle does not pass I furnished with a cross-head, F, yvhich is cona burnisher held upon the rest Q, and the whole cup, except the parts near and under the H, and the revolving adjustable crank G, to handle, is finished. The part near the handle whereby said spindle is partiallyrevolved back is afterward finished by hand. and forth with a reciprocating rotary motion What 1 claim as my invention isof less than a full circumference, substantially 5 In a bnrnishingmachine, a rotary spindle, as described.

B, provided with blocks M P, or equivalent NEWELL S. VALENTINE. means for holding the article to be burnished, Vitnesses: and a drum, 0, in combination with the cord EDWIN F. DIMOOK, D, the reciprocating bar E, the connecting-rod THEO. G. ELLIS. 

